Britney Spears and Katy Perry Went All Fangirl on Each Other at the 'Smurfs 2' Premiere

This photo of Britney Spears and Katy Perry meeting at the Smurfs 2 premiere is my everything. On Sunday, the pop princess and the California Girl were spotted greeting each other on the blue carpet (yes, blue) as Perry's film premiered in Westwood, Calif. (It's sort of Spears' film too, as "Ooh La La" appears...